从别人那摘录的Ubuntu源，测的很好用
# 电子科技大学 （教育网）
deb http://ubuntu.uestc.edu.cn/ubuntu/ oneiric main restricted universe multiverse deb http://ubuntu.uestc.edu.cn/ubuntu/ oneiric-backports main restricted universe multiverse deb http://ubuntu.uestc.edu.cn/ubuntu/ oneiric-proposed main restricted universe multiverse deb http://ubuntu.uestc.edu.cn/ubuntu/ oneiric-security main restricted universe multiverse deb http://ubuntu.uestc.edu.cn/ubuntu/ oneiric-updates main restricted universe multiverse deb-src http://ubuntu.uestc.edu.cn/ubuntu/ oneiric main restricted universe multiverse deb-src http://ubuntu.uestc.edu.cn/ubuntu/ oneiric-backports main restricted universe multiverse deb-src http://ubuntu.uestc.edu.cn/ubuntu/ oneiric-proposed main restricted universe multiverse deb-src http://ubuntu.uestc.edu.cn/ubuntu/ oneiric-security main restricted universe multiverse deb-src http://ubuntu.uestc.edu.cn/ubuntu/ oneiric-updates main restricted universe multiverse
# 中国科技大学
deb http://mirrors.ustc.edu.cn/ubuntu/ oneiric main restricted universe multiverse deb http://mirrors.ustc.edu.cn/ubuntu/ oneiric-backports restricted universe multiverse deb http://mirrors.ustc.edu.cn/ubuntu/ oneiric-proposed main restricted universe multiverse deb http://mirrors.ustc.edu.cn/ubuntu/ oneiric-security main restricted universe multiverse deb http://mirrors.ustc.edu.cn/ubuntu/ oneiric-updates main restricted universe multiverse deb-src http://mirrors.ustc.edu.cn/ubuntu/ oneiric main restricted universe multiverse deb-src http://mirrors.ustc.edu.cn/ubuntu/ oneiric-backports main restricted universe multiverse deb-src http://mirrors.ustc.edu.cn/ubuntu/ oneiric-proposed main restricted universe multiverse deb-src http://mirrors.ustc.edu.cn/ubuntu/ oneiric-security main restricted universe multiverse deb-src http://mirrors.ustc.edu.cn/ubuntu/ oneiric-updates main restricted universe multiverse
# 网易 Ubuntu 11.10 源（速度很快）
deb http://mirrors.163.com/ubuntu/ oneiric main universe restricted multiverse deb-src http://mirrors.163.com/ubuntu/ oneiric main universe restricted multiverse deb http://mirrors.163.com/ubuntu/ oneiric-security universe main multiverse restricted deb-src http://mirrors.163.com/ubuntu/ oneiric-security universe main multiverse restricted deb http://mirrors.163.com/ubuntu/ oneiric-updates universe main multiverse restricted deb http://mirrors.163.com/ubuntu/ oneiric-proposed universe main multiverse restricted deb-src http://mirrors.163.com/ubuntu/ oneiric-proposed universe main multiverse restricted deb http://mirrors.163.com/ubuntu/ oneiric-backports universe main multiverse restricted deb-src http://mirrors.163.com/ubuntu/ oneiric-backports universe main multiverse restricted deb-src http://mirrors.163.com/ubuntu/ oneiric-updates universe main multiverse restricted
# 也可以直接使用更快速的ubuntu.cn99.com的源（推荐）:
deb http://ubuntu.cn99.com/ubuntu/ oneiric main restricted universe multiverse deb http://ubuntu.cn99.com/ubuntu/ oneiric-updates main restricted universe multiverse deb http://ubuntu.cn99.com/ubuntu/ oneiric-security main restricted universe multiverse deb http://ubuntu.cn99.com/ubuntu/ oneiric-backports main restricted universe multiverse deb http://ubuntu.cn99.com/ubuntu-cn/ oneiric main restricted universe multiverse
完毕，呵呵呵呵
